diff options
Diffstat (limited to 'src/itree.h')
| -rw-r--r-- | src/itree.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/itree.h b/src/itree.h index b055522a192..f54dbd7f07e 100644 --- a/src/itree.h +++ b/src/itree.h @@ -25,6 +25,8 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */ #include "lisp.h" +INLINE_HEADER_BEGIN + /* The tree and node structs are mainly here, so they can be allocated. @@ -114,6 +116,11 @@ extern void itree_node_set_region (struct itree_tree *, struct itree_node *, ptrdiff_t, ptrdiff_t); extern struct itree_tree *itree_create (void); extern void itree_destroy (struct itree_tree *); +INLINE bool +itree_empty_p (struct itree_tree *tree) +{ + return !tree || !tree->root; +} extern intmax_t itree_size (struct itree_tree *); extern void itree_clear (struct itree_tree *); extern void itree_insert (struct itree_tree *, struct itree_node *, @@ -178,4 +185,6 @@ struct itree_iterator #define ITREE_FOREACH_NARROW(beg, end) \ itree_iterator_narrow (itree_iter_, beg, end) +INLINE_HEADER_END + #endif |